add: Highlight certificates outside validity period in Cert Overview

[gigi.git] / src / org / cacert / gigi / util / CalendarUtil.java

diff --git a/src/org/cacert/gigi/util/CalendarUtil.java b/src/org/cacert/gigi/util/CalendarUtil.java
index 03fdf2fceae76b7b2b03a9017b8e729338981148..7d65407779d48f3211f9819d0f2a18e09def1668 100644 (file)
--- a/src/org/cacert/gigi/util/CalendarUtil.java
+++ b/src/org/cacert/gigi/util/CalendarUtil.java
@@ -35,4 +35,11 @@ public class CalendarUtil {
         Date dob = cal.getTime();
         return new DayDate(dob.getTime());
     }
+
+    public static Date timeDifferenceDays(int days) {
+        Calendar c = Calendar.getInstance();
+        c.setTimeInMillis(System.currentTimeMillis());
+        c.add(Calendar.DAY_OF_MONTH, days);
+        return c.getTime();
+    }
 }